Re: Bug in ALTER COLUMN SET DATA TYPE ?
Nikhils <nikkhils@gmail.com>
From: Nikhil Sontakke <nikkhils@gmail.com>
To: Pavan Deolasee <pavan.deolasee@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2012-11-02T15:16:23Z
Lists: pgsql-hackers
> > postgres=# CREATE TABLE test (a float check (a > 10.2)); >> > CREATE TABLE >> > postgres=# CREATE TABLE test_child() INHERITS(test); >> > CREATE TABLE >> > postgres=# ALTER TABLE test ALTER COLUMN a SET DATA TYPE numeric; >> > ERROR: constraint must be added to child tables too >> >> Interestingly, this works in 8.3 and earlier ... but it fails as >> described in all later versions. So we broke it quite some time back. >> It would be good to identify exactly what change broke it. >> >> > Hmm.. I haven't yet tested on other branches. But I'm surprised that you > find it broken on so much old branches. "git annotate" suggests that the > offending error message was added by commit > 09ff76fcdb275769ac4d1a45a67416735613d04b and that commit is dated Apr 20, > 2012 > > Mea Culpa. I did indeed add that error message. But it's strange when Tom says that this is broken since 8.3! Regards, Nikhils -- StormDB - http://www.stormdb.com The Database Cloud Postgres-XC Support and Service
Commits
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API reference →
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Recast "ONLY" column CHECK constraints as NO INHERIT
- 09ff76fcdb27 9.2.0 cited
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Adjust join_search_one_level's handling of clauseless joins.
- 1f0363001166 9.2.0 cited
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Allow CHECK constraints to be declared ONLY
- 61d81bd28dbe 9.2.0 cited
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Change the rules for inherited CHECK constraints to be essentially the same
- cd902b331dc4 8.4.0 cited